Conducting Materials Part 1

The unit of electrical conductivity is _________________

• ohm m

• mho m

• mho m^-1

• ohm m^-1

the unit of electrical resistance is

• mho/m

• mho m

• ohm

• ohm/m

The unit of electrical resistivity

• mho/m

• mho m

• ohm/m

• ohm m

The unit of conductance is

• mho m

• mho

• ohm

• ohm/m

The unit of mobility is

• S^-1 m^-2 V^-2

• m² S^-1 V

• m^-2 V S

• V^-1 S^-1m²

The unit of drift velocity

• m/s²

• m/s

• m s

• m²s

The resistance of the most of the conducting materials _________ with increase in temperature.

• decrease

• remain same

• increases

• decreases i and then ncreases

Resistivity of conductors is most affected by

• current

• pressure

• temperature

• composition

In metals the type of bond present is

• covalent bond

• metallic bond

• ionic bond

• organic bond

Gold and silver are

• insulating materials

• magnetic materials

• low resistivity conducting materials

• dielectric materials